CN209982596U - A single-lens reflex camera back device - Google Patents

Abstract

The utility model discloses a back device for a single-lens reflex camera. The device is connected with the body of the single-lens reflex camera. The device comprises: a linear array CCD, a driving mechanism, a controller and an image output device. The driving mechanism is fixedly arranged in a casing and drives the The mechanism drive connects the linear CCD and drives the linear CCD to move in a straight line. The linear CCD corresponds to the lens setting of the fuselage, and is used to convert the light acquired by the lens into electrical signals. The controller is connected to the linear CCD signal for converting The electrical signal of the line array CCD is converted into image data, and the image output device is connected to the controller signal for outputting the image data as an image. On the basis of ensuring the high-quality imaging performance of the single-lens reflex camera, the utility model reduces the equipment cost and the use cost, and the frame size can be adjusted, the structure is simple, the installation and use are convenient, and the utility model has high economy, and is extremely suitable for popularization and use in the industry. .

Description

A single-lens reflex camera back device

technical field

The utility model generally relates to the field of photographing equipment, in particular, to a back device of a single-lens reflex camera.

Background technique

The imaging area of medium format is larger than that of full-frame, and it has significant advantages in scenery, portraits and scenes. However, traditional medium-format SLR cameras use film as the imaging medium. The cost of film and printing is high, and the use steps are complicated. On the back, the digital back is attached to the traditional medium-format camera, so that the traditional medium-format camera can realize convenient digital shooting. However, the existing digital backs all use flat charge-coupled devices as photosensitive elements, which are expensive and make medium-format shooting. The high cost is not conducive to the development of the photography industry and photography art.

Therefore, there is an urgent need in the industry for a SLR camera back device with high image quality and low cost.

Utility model content

A main purpose of the present invention is to overcome at least one of the above-mentioned defects of the prior art, and to provide a back device for a single-lens reflex camera with high imaging quality and low cost.

For realizing the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

According to one aspect of the present invention, there is provided a back device for a single-lens reflex camera, the device is connected to the body of the single-lens reflex camera, and the device includes: a linear array CCD, a driving mechanism, a controller and an image output device, all of which are The driving mechanism is fixedly arranged in a casing, and the driving mechanism drives and connects the linear array CCD, and drives the linear array CCD to move in a straight line. The light obtained by the lens is converted into electrical signals, and the controller is connected to the signal of the linear CCD for converting the electrical signals of the linear CCD into image data, and the image output device is connected to the controller. Signals are connected for displaying the image data output as an image.

According to an embodiment of the present invention, the controller includes a drive control module, and the drive control module is signal-connected with the drive mechanism to control the movement of the drive mechanism.

According to an embodiment of the present invention, the controller includes an image processing module, and the image processing module is connected to the signal of the linear array CCD to process the electrical signal of the linear array CCD.

According to an embodiment of the present invention, the driving mechanism includes a motor and a transmission assembly, and the motor drives the linear array CCD to perform linear motion through the transmission assembly.

According to an embodiment of the present invention, the transmission assembly includes a lead screw and a nut, the output shaft of the motor is connected to the lead screw and drives the lead screw to rotate, and the nut is connected to the lead screw in a threaded transmission connection.

According to an embodiment of the present invention, the transmission assembly includes a guide rod, and the guide rod guides the nut to move linearly.

According to an embodiment of the present invention, the linear array CCD is mounted on the nut and is perpendicular to the guide rod.

According to an embodiment of the present invention, the image output device is fitted on the casing.

According to an embodiment of the present invention, the casing is provided with a clamping structure, and the clamping structure is adapted to the body.

According to an embodiment of the present invention, the linear CCD is disposed in the focal plane of the lens.

As can be seen from the above technical solutions, the advantages and positive effects of the SLR camera back device of the present invention are:

In the utility model, the driving mechanism drives the linear array CCD to move in a straight line, and then the linear array CCD converts the light obtained by the lens into electrical signals to complete image recording, the cost of the photosensitive element is reduced, and the high-quality imaging performance of the single-lens reflex camera is guaranteed on the basis of , reducing the equipment cost and the use cost, and the frame size can be adjusted, the structure is simple, the installation and use are convenient, and the utility model has high economic efficiency, which is very suitable for promotion and use in the industry.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in this application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of the overall structure of a back device of a single-lens reflex camera according to an embodiment of the present invention.

FIG. 2 is an exploded schematic diagram of a viewing angle of a back device of a single-lens reflex camera according to an embodiment of the present invention.

3 is an exploded schematic diagram of another viewing angle of the back device of a single-lens reflex camera according to an embodiment of the present invention.

FIG. 4 is a partial enlarged schematic diagram of a back device of a single-lens reflex camera according to an embodiment of the present invention.

Among them, the reference numerals are described as follows:

1. Housing; 2. Clamping structure; 3. Frame-pressing structure; 4. Driving mechanism; 41. Mounting frame; 42. Motor; 43. Transmission assembly; 431. Lead screw; 432, Nut; 5. Linear CCD; 6. Controller; 7. Image output device.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

In the following description of various examples of the present invention, reference is made to the accompanying drawings, which form a part hereof and in which are shown by way of example various exemplary structures, systems in which various aspects of the present invention may be implemented and steps. It is to be understood that other specific arrangements of components, structures, exemplary devices, systems and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Furthermore, although the terms "top," "bottom," "front," "rear," "side," etc. may be used in this specification to describe various exemplary features and elements of the present invention, these terms are used for For convenience only, the orientations of the examples as described in the figures are presented herein. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of structures to fall within the scope of the present invention.

FIG. 1 is a schematic diagram of the overall structure of a back device of a single-lens reflex camera according to an embodiment of the present invention.

FIG. 2 is an exploded schematic diagram of a viewing angle of a back device of a single-lens reflex camera according to an embodiment of the present invention.

As shown in FIG. 1 and FIG. 2 , the SLR camera back device of this embodiment is connected to the body of the SLR camera, and the SLR camera back device includes: a linear array CCD 5 , a driving mechanism 4 , a controller 6 and an image output device 7 , the driving mechanism 4 is fixedly arranged in a housing 1, and the driving mechanism 4 drives and connects the linear array CCD5, and drives the linear array CCD5 to perform linear motion. For the electrical signal, the controller 6 is connected to the line CCD5 signal for converting the electrical signal of the line CCD5 into image data, and the image output device 7 is connected to the controller 6 signal for outputting the image data as an image. Among them, the linear array CCD is the linear array charge-coupled device image sensor.

In this embodiment, the single-lens reflex camera may be a medium-format single-lens reflex camera or a large-format camera. This embodiment is described by taking an example that the single-lens reflex camera is a traditional medium-format single-lens reflex camera. The body of a single-lens reflex camera includes a lens, a rangefinder and a light control component. The lens is used to gather the light from the external subject and make the subject form a clear latent image on the photosensitive element. In this embodiment, the photosensitive element is Linear CCD5; the rangefinder is connected with the lens to adjust the distance from the lens to the linear CCD5, that is, focusing; the light control component can include aperture and variable neutral density mirror, both aperture and variable neutral density Adjustable setting, the aperture is set between the lens and the linear CCD5, the variable ND filter is set at the front of the lens, the aperture and the variable ND filter can be adjusted together to control the amount of light reaching the linear CCD5.

In this embodiment, the casing 1 of the back device of the SLR camera is generally square, and the casing 1 is provided with a clamping structure 2 , and the clamping structure 2 is arranged at an opening of one end of the casing 1 , on the body of the SLR camera. The end away from the lens is provided with a clamped structure, and the clamped structure 2 is adapted to the clamped structure, so that the back device of the SLR camera and the body of the SLR camera are connected to the clamped structure through the clamped structure 2, and the card One, two or more can be provided with the connection structure 2. The specific number of installations can be determined according to the requirements. The shape and size of the clamping structure 2 can be determined according to the clamped structure on the matching SLR camera body. To meet the installation requirements of different brands and different models of SLR cameras; the casing 1 is also provided with a frame-pressing structure 3, and the frame-pressing structure 3 is in the shape of a hollow frame, the shape of which is adapted to the shape of the opening of the casing 1. In this embodiment The housing 1 is a square, the frame-pressing structure 3 is correspondingly a square frame, and the frame-pressing structure 3 is arranged to press the clamping structure 2 to fix the clamping structure 2; in other embodiments, the SLR camera back device and the SLR camera The fuselage of the SLR can also be connected through an adapter board, and the connection form between the back device of the SLR camera and the fuselage of the SLR camera depends on the frame requirements.

3 is an exploded schematic diagram of another viewing angle of the back device of a single-lens reflex camera according to an embodiment of the present invention.

FIG. 4 is a partial enlarged schematic diagram of a back device of a single-lens reflex camera according to an embodiment of the present invention.

As shown in FIG. 3 and FIG. 4 , in this embodiment, the drive mechanism 4 of the back device of the SLR camera is installed in the housing 1 , and the drive mechanism 4 includes a mounting frame 41 , a motor 42 and a transmission assembly 43 , and the mounting frame 41 is generally in the form of a In the shape of a long strip, the mounting frame 41 can be laterally fixed and installed inside the casing 1 through a screw connection; the motor 42 can be a stepper motor 42, and the motor 42 can be fixedly installed on one end of the mounting frame 41. The casing of the back device of the SLR camera 1 is also provided with a power supply. The power supply is electrically connected to the motor 42 to provide electrical energy for the motor 42 and other electrical appliances. The power supply can be a rechargeable battery.

In this embodiment, the transmission assembly 43 includes a lead screw 431 , a nut 432 and a guide rod 433 , the lead screw 431 is rotatably arranged on the mounting frame 41 , and the setting direction of the lead screw 431 is the same as the lengthwise extending direction of the elongated mounting frame 41 . Consistent, and the power output shaft of the motor 42 can be connected to the lead screw 431 through a coupling, so that the power of the motor 42 is transmitted to the lead screw 431 to drive the lead screw 431 to rotate, the nut 432 is arranged on the lead screw 431, and the nut 432 and the lead screw The rods 431 are connected by a threaded structure and perform screw transmission. Two guide rods 433 can be provided. The two guide rods 433 are arranged on the mounting frame 41 in parallel with the lead screw 431, and the two guide rods 433 are respectively penetrated through the nut 432. The guide rod 433 guides the movement of the nut 432 during the linear movement of the nut 432 on the lead screw 431 to ensure that the movement direction of the nut 432 is accurate.

In this embodiment, the linear array CCD5 is roughly in the shape of a long strip, and is densely covered with a number of photosensitive units, which can simultaneously receive and convert a series of optical signals. The linear array CCD5 is installed on the nut 432 and is perpendicular to the guide rod 433. The length extension direction of the long linear array CCD5 is perpendicular to the linear motion trajectory of the nut 432. In this embodiment, the lead screw 431 and the guide rod 433 of the transmission assembly 43 are arranged horizontally, and the linear array CCD5 is arranged vertically. The array CCD5 corresponds to the lens setting on the fuselage, and is located in the focal plane of the lens. The motor 42 drives the lead screw 431 to rotate, and the lead screw 431 drives the nut 432 and the linear array CCD5 on the nut 432 to move in a straight line under the guidance of the guide rod 433, and the linear array CCD5 continues to receive light from the lens during the linear motion. And convert it into an electrical signal to achieve imaging.

It should be noted that the stroke of the lead screw 431 and the nut 432 of the driving mechanism 4 can be controlled and adjusted by the controller 6, thereby realizing the adjustment of the shooting frame, which enhances the adaptability and practicability of the present application. The transmission component 43 of the driving mechanism 4 can also be a rack and pinion mechanism, a sprocket chain mechanism, a pulley transmission mechanism or other mechanisms that can convert rotation into linear motion, or the driving mechanism 4 can also be a linear motion cylinder, the driving mechanism The specific form of 4 can be determined according to actual needs.

In this embodiment, the controller 6 is arranged in the housing 1 , and the controller 6 includes a drive control module and an image processing module. The drive control module is signal-connected to the motor 42 of the drive mechanism 4 to control the linear motion of the drive mechanism 4 . , so as to control the imaging process and frame size of the linear array CCD5; the image processing module is connected to the linear array CCD5 signal, the linear array CCD5 receives the light penetrated from the lens and converts it into an electrical signal, and further transmits the electrical signal to the image processing. module, the image processing module processes the electrical signals of the linear array CCD5 to form image data; the controller 6 can also be provided with a data transmission interface, one end of the data transmission interface is data-connected with the image processing module, and the other end can be connected and moved by data Therefore, the image data processed by the image processing module can be output to a mobile memory for storage through a data transmission interface. The mobile memory can be an SD card, namely a secure digital memory card, or other storage devices.

In this embodiment, the image output device 7 can be a display, and the image output device 7 is fitted on the casing 1, and is located at the opening of the other end of the casing 1 opposite to the opening where the clip structure 2 is disposed, The image output device 7 is signal-connected to the image processing module of the controller 6. After the image processing module processes the electrical signals of the linear array CCD 5 to form image data, the image data is further transmitted to the image output device 7, and the image output device 7 sends the image data to the image output device 7. Displayed as an image in real time.

In the present invention, the driving mechanism 4 drives the linear array CCD5 to move in a straight line, and then the linear array CCD5 converts the light obtained by the lens into electrical signals to complete image recording, the cost of the photosensitive element is reduced, and the high-quality imaging performance of the single-lens reflex camera is guaranteed. On the other hand, the equipment cost and use cost are reduced, the frame size can be adjusted, the structure is simple, the installation and use are convenient, and the utility model has high economic efficiency, which is very suitable for promotion and use in the industry.

Those skilled in the art to which the present invention pertains should understand that the specific structures and processes shown in the above-mentioned detailed description section are merely exemplary, rather than limiting. Moreover, those of ordinary skill in the technical field of the present invention can combine the various technical features shown above in various possible ways to form new technical solutions, or make other changes, which all belong to the present invention. within the range.

Claims (10)

1. A single-lens reflex camera back device is characterized in that, the device is connected with the body of the single-lens reflex camera and set, and the device comprises: a linear array CCD, a driving mechanism, a controller and an image output device, and the driving mechanism is fixed It is arranged in a casing, and the driving mechanism drives and connects the linear array CCD, and drives the linear array CCD to move in a straight line. The linear array CCD is set corresponding to the lens of the body, and is used to obtain the The light is converted into electrical signals, and the controller is connected to the signal of the line array CCD for converting the electrical signal of the line array CCD into image data. The image output device is connected to the signal of the controller, using for displaying the image data output as an image. 2 . The single-lens reflex camera back device according to claim 1 , wherein the controller comprises a drive control module, and the drive control module is signal-connected to the drive mechanism to control the movement of the drive mechanism. 3 . 3. The single-lens reflex camera back device according to claim 1, wherein the controller comprises an image processing module, and the image processing module is connected with the signal of the line array CCD, so as to adjust the signal of the line array CCD. electrical signal processing. 4 . The back device of a single-lens reflex camera according to claim 1 , wherein the driving mechanism comprises a motor and a transmission assembly, and the motor drives the linear array CCD to move linearly through the transmission assembly. 5 . 5. The back device of a single-lens reflex camera according to claim 4, wherein the transmission assembly comprises a lead screw and a nut, and the output shaft of the motor is connected to the lead screw and drives the lead screw to rotate, the The nut is threadedly connected with the lead screw. 6 . The back device of a single-lens reflex camera according to claim 5 , wherein the transmission assembly comprises a guide rod, and the guide rod guides the nut to move linearly. 7 . 7 . The back device of a single-lens reflex camera according to claim 6 , wherein the linear array CCD is mounted on the nut and is arranged perpendicular to the guide rod. 8 . 8 . The single-lens reflex camera back device of claim 1 , wherein the image output device is fitted on the casing. 9 . 9 . The back device of a single-lens reflex camera according to claim 1 , wherein the casing is provided with a snap-fit structure, and the snap-fit structure is configured to fit with the body. 10 . 10. The single-lens reflex camera back device according to any one of claims 1-9, wherein the linear CCD is arranged in the focal plane of the lens.

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